After a long process and a PSU/MB failure, I have almost finished my Sentry, still on the hunt for the best card. Perhaps I'll wait for Volta/Ampere.
Fatal1ty Z370 Gaming-ITX/ac
Intel 8700 Coffee Lake
Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 2666MHz (PC4 21300) C16
Thermolab LP53 Slim & Quiet CPU Cooler Intel 1155/1156
Noctua 92 x 14 mm Low-Profile Cooling Fan with A-Series Blades (NF-A9x14) w/ Silicone Cooking Bands
Samsung 960 EVO Series - 500GB NVMe - M.2 Internal SSD (MZ-V6E500BW)
JP-P600-05 JunPus JP-P600 High Performance Thermal Pad 6W/mK (100x100mm) 0.5 mm
Corsair SF600 600W PSU
Demcifilters
The termal pad helped temps out of the case for the 960 evo, 8C lower. It's the same temp inside the case with the thermalpad vs out of case without thermal pad because it's under the motherboard and the motherboard was that on the foam. I didn't remove the sticker, since it has copper traces and it voids the warranty, I doubt it would make a difference anyway.
I first had Kyronaut, but I found it really hard to apply. The paste is very dry and the TIM sticks more to the spatula tool provided than anything else. The TIM was sliding around on the processor. Using PassMark Performance Test 9.0, my max cpu temps were between 80-85C, depending on the core with Kyronaut. I then decided to try Conductonaut, which got me a max of 80C, that was consistent across all cores. I then started to read a few stories from people having their conductonaut leaking and others warning it shouldn't be used between the cpu and heatsink. When I applied the conductonaut, I was careful, however I didn't realize there was a small tip that I needed to attach. So I ended up with a ball bigger than a pea, but after spreading it on cpu and heatsink, there was a small puddle or lake effect. I knew I had too much. So I got paranoid and tore it down again, removed the conductonaut with qtips and ISO. I went to reapply the LM, but it turns I used the whole tube.
I reapplied the kryonaut but got worse temps, applied it a few times and still poor temps compared to the first paste. I finally decided to live with it and close up the case. When I powered it on, it died almost immediately. Pressing the power button barely spun the fan and got nothing. I tore it down again and flipped the case upside down.....a screw fell out. How it was in there, I don't know, I flipped it over before I closed the case. So I thought the MB was dead. Replaced the MB and got LED lights, hit the power button, and nothing, not even a fan spin. I was about to flip my shit, when I decided to see if the PSU is bad. Luckily I've had a PSU for 10 years that I never used, I plugged it in to the board and it worked. At this point, I have to assume the screw came from inside the PSU. So I had to RMA my Refurb SF600 that I picked up over black friday.
While I waited for that, I lapped the heatsink and the CPU with 1000 grid 10x in each direction, then again for 2000 grit.
I then tried MX-4 since I ran out of Kyronaut, easy to apply, but I repasted twice and got temps that matched the initial Kryonaut paste.
The lapping didn't do anything, but make the copper shiny again after the liquid metal. I also tried the LP53 with fins parallel to the ram vs perpendicular. Temps were better with airflow, parallel to the ram, heat not trapped between vrm and ram.
I spent a bit of time doing cable management the best I could with the stock SF600 cables. I closed it up and it works (phew).
I benched it again, using the same test. My temps max now hits 99-100C
I'm worried that when I add a gfx card, it will heat the cpu even more. I'm not overclocked but turboboost is on , the RAM is running at 2666 just seems the thermal limits of the heatsink and the case. My max is now 4.4ghz, with 2 cores going to 4.5, compared to 4.6 out of case. Anyone else with similar temps?
The intel diagnostics tool heated up the CPU more than Performance Test or Prime95, it hit 100C out of the case and failed the test. With the MX-4, it barely passed but still hit 100C (probably a fluke, since the temp is checked every 2-3 seconds)
I never delidded and after seeing these stress temps, It's looking more likely I'll be willing to attempt it. Anyone have temp comparisons for a 8700 delid?
I'll be keeping the sentry vertical.
I still need to get a GFX card:
So what should I do?
GTX 1080TI EVGA Blower
Open Air card?
Wait for next gen (Q2-Q3?)
Another card?